Banana agronomy can unravelling the Musa genome help?

David W. Turner, Jeanie A. Fortescue, J.W. Daniells

    Research output: Chapter in Book/Conference paperConference paper

    Abstract

    Unravelling the Musa genome allows genes and alleles linked to desired traits to be identified. Short stature and early flowering are desirable agronomic features of banana, as they are of bread wheat (Triticum aestivum). In wheat they were achieved through knowledge of the physiology and genetics of vernalization and photoperiod during development. Bananas and plantains have a facultative long-day response to photoperiod, as do wheat and wall cress (Arabidopsis thaliana). Using keyword searches of the genome of Musa acuminata Pahang we found homologues of the genes of either T. aestivum or Arabidopsis that govern responses to vernalization and photoperiod. This knowledge needs to be interpreted in the context of plant development. Bananas have juvenile, mid-vegetative and reproductive phases of development. Leaf and bunch clocks operate concurrently throughout the juvenile and mid-vegetative phases. In the mid-vegetative phase the plant becomes sensitive to photoperiod. Increased sensitivity to photoperiod reduces the overall pace of the bunch clock without affecting the leaf clock. Separation of the clocks changes the link between leaf number and time of flowering. The critical quantitative trait for the time of flowering is the pace of the bunch clock up to bunch initiation. For bunch size it is the duration of the subsequent phase of female hand formation. Plants with either a short juvenile phase or a faster bunch clock in the mid-vegetative phase will produce fewer leaves and bunch early. In turn, independent manipulation of hand number per bunch and/or fruit per hand will provide manageable bunches with appropriate fruit size. Using published data we explore relationships between plant height, leaf number, bunch weight and hand number among bananas and plantains. Identifying and then manipulating the appropriate genes in Musa opens opportunities for earlier flowering, leading to plants with desirable agronomic qualities.
    Original languageEnglish
    Title of host publicationActa Horticulturae
    EditorsDr Yves Desjardins
    PublisherInternational Society for Horticultural Science
    Pages245-260
    Number of pages16
    Volume1114
    ISBN (Print)9789462611085
    DOIs
    Publication statusPublished - 2016
    EventIX International Symposium on Banana: ISHS-ProMusa Symposium on Unravelling the Banana's Genomic Potential - Australia, Brisbane, Australia
    Duration: 17 Aug 201422 Aug 2014

    Conference

    ConferenceIX International Symposium on Banana: ISHS-ProMusa Symposium on Unravelling the Banana's Genomic Potential
    CountryAustralia
    CityBrisbane
    Period17/08/1422/08/14

    Fingerprint

    agronomy
    Musa
    bananas
    photoperiod
    hands
    genome
    flowering
    plantains (fruit)
    vernalization
    leaves
    wheat
    Triticum aestivum
    Musa acuminata
    fruits
    genes
    quantitative traits
    plant development
    physiology
    Arabidopsis thaliana
    Arabidopsis

    Cite this

    Turner, D. W., Fortescue, J. A., & Daniells, J. W. (2016). Banana agronomy can unravelling the Musa genome help? In D. Y. Desjardins (Ed.), Acta Horticulturae (Vol. 1114, pp. 245-260). International Society for Horticultural Science. https://doi.org/10.17660/ActaHortic.2016.1114.34
    Turner, David W. ; Fortescue, Jeanie A. ; Daniells, J.W. / Banana agronomy can unravelling the Musa genome help?. Acta Horticulturae. editor / Dr Yves Desjardins. Vol. 1114 International Society for Horticultural Science, 2016. pp. 245-260
    @inproceedings{98a17dd03f9e4cbca4d43d7cd6c78679,
    title = "Banana agronomy can unravelling the Musa genome help?",
    abstract = "Unravelling the Musa genome allows genes and alleles linked to desired traits to be identified. Short stature and early flowering are desirable agronomic features of banana, as they are of bread wheat (Triticum aestivum). In wheat they were achieved through knowledge of the physiology and genetics of vernalization and photoperiod during development. Bananas and plantains have a facultative long-day response to photoperiod, as do wheat and wall cress (Arabidopsis thaliana). Using keyword searches of the genome of Musa acuminata Pahang we found homologues of the genes of either T. aestivum or Arabidopsis that govern responses to vernalization and photoperiod. This knowledge needs to be interpreted in the context of plant development. Bananas have juvenile, mid-vegetative and reproductive phases of development. Leaf and bunch clocks operate concurrently throughout the juvenile and mid-vegetative phases. In the mid-vegetative phase the plant becomes sensitive to photoperiod. Increased sensitivity to photoperiod reduces the overall pace of the bunch clock without affecting the leaf clock. Separation of the clocks changes the link between leaf number and time of flowering. The critical quantitative trait for the time of flowering is the pace of the bunch clock up to bunch initiation. For bunch size it is the duration of the subsequent phase of female hand formation. Plants with either a short juvenile phase or a faster bunch clock in the mid-vegetative phase will produce fewer leaves and bunch early. In turn, independent manipulation of hand number per bunch and/or fruit per hand will provide manageable bunches with appropriate fruit size. Using published data we explore relationships between plant height, leaf number, bunch weight and hand number among bananas and plantains. Identifying and then manipulating the appropriate genes in Musa opens opportunities for earlier flowering, leading to plants with desirable agronomic qualities.",
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    Turner, DW, Fortescue, JA & Daniells, JW 2016, Banana agronomy can unravelling the Musa genome help? in DY Desjardins (ed.), Acta Horticulturae. vol. 1114, International Society for Horticultural Science, pp. 245-260, IX International Symposium on Banana: ISHS-ProMusa Symposium on Unravelling the Banana's Genomic Potential, Brisbane, Australia, 17/08/14. https://doi.org/10.17660/ActaHortic.2016.1114.34

    Banana agronomy can unravelling the Musa genome help? / Turner, David W.; Fortescue, Jeanie A.; Daniells, J.W.

    Acta Horticulturae. ed. / Dr Yves Desjardins. Vol. 1114 International Society for Horticultural Science, 2016. p. 245-260.

    Research output: Chapter in Book/Conference paperConference paper

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    Turner DW, Fortescue JA, Daniells JW. Banana agronomy can unravelling the Musa genome help? In Desjardins DY, editor, Acta Horticulturae. Vol. 1114. International Society for Horticultural Science. 2016. p. 245-260 https://doi.org/10.17660/ActaHortic.2016.1114.34